IL17F and diabetes mellitus: We studied the frequencies of iNKT cells expressing Type 17 (IL-17A, IL-17F, and IL-22) cytokines and PD-1 immune marker in LTB coinfected (NDM, PDM, and DM) individuals with baseline (UNS), after stimulation with mycobacterial antigen (PPD and WCL) and mitogen through multicolour flow cytometry (Figure 4(d)).